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-tious

American  

  1. a suffix originally occurring in adjectives borrowed from Latin (fictitious ); on this model, used with stems of other origin (bumptious ).

Etymology

Origin of -tious

< Latin -tiōsus, equivalent to -t ( us ) past participle suffix + -iōsus -ious

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.